Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 376 · 40 questions

What you do (Rub and charge): 1. Tear a sheet of paper into tiny bits on a table. 2. Comb dry, clean hair quickly 10 times. 3. Hold the comb just above the paper bits and watch. 4. Try again with 20 combs, and count the bits each time.

1. 1.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a magnet (c) tiny paper bits (d) a balloon
2. 2.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is kept the same. (a) False (b) True
3. 3.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we measure it (b) we keep it the same (c) we change it
4. 4.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a magnet (c) a balloon (d) yeast
5. 5.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) under a tall tree (c) in an open field (d) indoors
6. 6.🧺 Which of these is needed for the static comb? (a) dry hair (b) a magnet (c) turmeric powder (d) a battery cell
7. 7.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
8. 8.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
9. 9.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed balloon (c) a rubbed plastic comb (d) plug points at home
10. 10.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
11. 11.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) dry hair (c) vinegar (d) tiny paper bits
12. 12.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) number of rubs (b) paper bits picked up (c) the paper bit size
13. 13.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the same comb (b) the paper bit size (c) paper bits picked up (d) number of rubs
16. 16.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) number of rubs (b) paper bits picked up (c) the paper bit size (d) the same comb
18. 18.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
19. 19.🧺 Which of these is needed for the static comb? (a) a mirror (b) tiny paper bits (c) a magnet (d) yeast
20. 20.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
21. 21.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
22. 22.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we measure it (b) we change it (c) we keep it the same
23. 23.True or false: turmeric powder is not needed for the static comb. (a) True (b) False
24. 24.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) yeast (c) a plastic comb (d) tiny paper bits
25. 25.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
26. 26.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) dry hair (c) a heavy book (d) a thin water stream
27. 27.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
28. 28.⚡ Which of these does not move to a charged comb? (a) a steel spoon (b) dry hair (c) puffed rice (d) thermocol bits
29. 29.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a brick (c) a pebble (d) a thin water stream
30. 30.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it sticks for a while (c) it bursts at once (d) it falls straight down
31. 31.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) they turn blue (c) nothing happens (d) the bits jump to it
32. 32.True or false: a brick does not move to a charged comb. (a) True (b) False
33. 33.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
34. 34.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is kept the same. (a) True (b) False
35. 35.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) puffed rice (c) a pebble (d) a brick
36. 36.🧺 Which of these is not needed for the static comb? (a) vinegar (b) dry hair (c) a plastic comb (d) a balloon
37. 37.🧺 Which of these is not needed for the static comb? (a) a balloon (b) tiny paper bits (c) a plastic comb (d) yeast
38. 38.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
39. 39.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) a mirror (d) tiny paper bits
40. 40.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) puffed rice (c) a pebble (d) tiny paper bits

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